PGP (Pretty Good Privacy) is a computer program for encryption and decryption of data that provides cryptographic privacy and authentication for data communication.

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Short, easy to understand explanation of GPG/PGP for nontechnical people?

Does anyone have a link to a good, but short (1-2 paragraphs) explanation of the benefits of using GPG/PGP signing and encryption for Email focused at non-technical readers? That is, why would someone ...
15
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1answer
5k views

PGP encrypt single message for multiple recipients

Is it possible to encrypt a message using PGP so that multiple recipients (each with their own public private keypair) can decrypt it? I'd like to email one message which can be decrypted by each ...
42
votes
2answers
12k views

One GnuPG/PGP key pair, two emails?

I have two emails I use frequently, for both of which I'd like to use PGP keys generated/managed by GnuPG. I'd like to avoid creating a different key pair for each email, if possible, as that's ...
9
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2answers
11k views

How to use gpg and SSH together? [duplicate]

Possible Duplicate: Are GPG and SSH keys interchangable? How to use gpg and SSH together? I know the basic procedures of 1) using gpg to encrypt and decrypt text files and 2) generating ...
9
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1answer
3k views

PGP (GnuPG) - what was the original filename?

John wants to send 1.txt to Paul. He encrypts it. Now the file is named myFile.pgp, and he sends it to Paul. Paul gets the file. How (if possible) can Paul know what the original file name (1.txt) ...
6
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2answers
1k views

if one doesn't care about protecting a gpg secret key, is it still as secure as using gpg --symmetric?

Each of Alice and Bob is using gpg just to protect his/her own personal files and not using it as a way to send encrypted text to others. Alice has generated a key (gpg --gen-key) that she uses to ...
3
votes
1answer
62 views

How to generate the revocation certificate after being made a revoker with GnuPG

I read the "How should GnuPG's `--desig-revoke` command be used?" question/answer, so now I know when to use the --desig-revoke. So, I have two different private keys -- one at work (WORKWORK), ...
3
votes
2answers
501 views

How do I display the usage flags for my encryption keys in a less hackish way?

I am trying to educate myself on the use of encryption keys and I've been experimenting with this old Linus Torvalds’ key that I found 956EB7BF449FA3AB. I am interested to display the usage flags but ...
2
votes
4answers
176 views

GPG public key created with GnuPG is rejected by MS Outlook 2010, why?

I created a GPG keypair with GnuPG on the CentOS 7 command line and I have exported the public key into a .asc file and successfully used that public key to encrypt emails sent from another email ...
2
votes
2answers
168 views

How should GnuPG's `--desig-revoke` command be used?

How should the GnuPG command --desig-revoke be used, and in which cases should you use it? According to the manual: --desig-revoke name Generate a designated revocation certificate for a key. ...
1
vote
2answers
762 views

How can you let mutt encrypt mails in the sent-mail folder?

When i sent an encrypted mail, i was surprised that the copy in sent-mail was not encrypted. Checking with a testmail, the mail is sent encrypted, but the copy in the sent-mail folder is plain text, ...